Home / 85,731.49-119,022.14-83,165.41

Finding the Fourth Proportional to 85,731.49, 119,022.14 and 83,165.41

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Solution

The fourth proportional to 85,731.49, 119,022.14 and 83,165.41 is: 115,459.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,731.49 : 119,022.14 = 83,165.41 : x
  2. Step 2: Convert to fraction form
    85,731.49/119,022.14 = 83,165.41/x
  3. Step 3: Cross multiply
    85,731.49x = 119,022.14 × 83,165.41
  4. Step 4: Simplify right side
    85,731.49x = 9,898,525,072.18
  5. Step 5: Solve for x
    x = 9,898,525,072.18/85,731.49
  6. Step 6: Final answer
    x = 115,459.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.